CA2587313A1 - Quick coupling - Google Patents
Quick coupling Download PDFInfo
- Publication number
- CA2587313A1 CA2587313A1 CA002587313A CA2587313A CA2587313A1 CA 2587313 A1 CA2587313 A1 CA 2587313A1 CA 002587313 A CA002587313 A CA 002587313A CA 2587313 A CA2587313 A CA 2587313A CA 2587313 A1 CA2587313 A1 CA 2587313A1
- Authority
- CA
- Canada
- Prior art keywords
- quick coupling
- tubular body
- bearing
- female
- ring nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010168 coupling process Methods 0.000 title claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 37
- 230000008878 coupling Effects 0.000 title claims abstract description 36
- 239000012530 fluid Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
- F16L27/0832—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings having axial bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/005—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts comprising locking means for the threaded member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
- F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
- F16L37/34—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied at least one of the lift valves being of the sleeve type, i.e. a sleeve is telescoped over an inner cylindrical wall
Abstract
A quick coupling comprises a male element (2) which can be threadably assembled to a female element (3), housing an inner tubular supporting body (8) in turn housing a bearing (11) thereon the female element (3) bears, the female element (3) including a plurality of radially extending holes (20) in which are engaged ball elements (21) which can be fitted in a circumferential slot formed in the male body (2) and being adapted to be radially locked by an enlarged portion (16) formed on an inner side of a ring nut which can be driven against an urging spring (17) pertaining to the female element.
Description
QUICK COUPLING
BACKGROUND OF THE INVENTION
The present invention relates to a quick coupling providing a safe connection of mechanical parts, an easy plug-in, respectively plug-out, of the quick coupling components, an efficient mutual connection and plug-in/plug-out, without using operating tools.
A well known requirement of the prior art, in particular in the electric or electronic apparatus refrigerating field, is that of continuously refrigerating electric or electronic components included in said apparatus.
This is usually performed by using a plurality of pipes designed for supplying a refrigerating fluid to the devices to be refrigerated, and return ducts for recovering the refrigerating fluid.
Said delivery or feeding, respectively return, pipes or ducts, are conventionally coupled to the devices to be refrigerated, by means of quick-coupling assemblies.
In a prior quick coupling assembly, the male element thereof has a male element thread which can be engaged with a female element thread formed on the female part of the coupling.
To prevent the two bodies of the quick coupling from accidentally detaching and sliding away, said prior quick couplings usually comprise a protective ring nut element which can be clamped under a clamping torque applied by a torque wrench.
A drawback of such a prior arrangement is that both the connecting and disengaging operations of the threaded parts require that a tool be used, such as a torque wrench.
Such a tool must also be used for overcoming the great friction occurring, in particular, between an inner tubular element and an outer tubular element of the quick coupling female part.
SUMMARY OF THE INVENTION
Thus, the object of the present invention is to provide a novel quick coupling allowing the threaded bodies thereof to be slidably connected, respectively disconnected, by simple manual operations, without requiring operating tools, while providing a safe connection of the quick coupling bodies.
According to the present invention, the above mentioned object is achieved by a quick coupling comprising a male element which can be threadably connected to a female body, said female body including an inner tubular body housing a bearing on which an outer tubular body bears.
Advantageously, the female body outer tubular body comprises, at a front side thereof, a plurality of circumferentially extending holes housing radially movable ball elements therein, said ball elements being adapted to be engaged in a circumferential slot of the male body, said ball elements being adapted to be radially locked by a circumferential enlarged portion formed on the inner side of a female body ring nut and adapted to be driven against a counter-biasing spring.
BRIEF DESCRIPTION OF THE DRAWINGS
The subject matter of the present invention will be disclosed and illustrated in a more detailed manner hereinafter with reference to an exemplary embodiment thereof, which is shown in the accompanying drawings, where:
Figure 1 is a longitudinal cross-sectional view showing the male element and female element of a quick coupling in a disassembled condition thereof;
Figure 2 is a further longitudinal cross-sectional view showing the components of the quick coupling in a partially threaded assembled condition; and Figure 3 shows the components of the quick coupling in a fully assembled condition.
DESCRIPTION OF THE PREFERRED
EMBODIMENT
As shown in figure 1, the quick coupling, generally indicated by the reference number 1, comprises a quick coupling male element 2 and a quick coupling female element 3 which can be mutually coupled to one another.
To provide a threaded type of connection, the male element 2 comprises, at a front portion thereof, an outer thread 4, to be coupled with an inner thread 5 formed inside the female body or element 3.
The operating fluid, such as a refrigerating fluid, is supplied, in a per se known manner, either through the inlet 6 of the male body 2 or through the inlet 7 of the female element 3.
The inlet 7 is formed in a tubular body 8 housing a longitudinally extending stem 9 encompassed by a spring 10, as known in the prior art.
The constructional elements 9 and 10, and related gaskets, advantageously 0-ring seals, will be not disclosed in further details therein, since they are well known in the prior art and are conventionally used in prior quick couplings.
Advantageously, the tubular body 8 houses therein a bearing 11, advantageously a thrust bearing, designed for resisting both against axial pushing forces and against radial efforts.
More specifically, the bearing 11 is housed in an annular chamber 12 formed in the outer tubular body 3 forming the female part of the quick coupling.
Also advantageously, the bearing 11 is held in its desired position by resilient ring elements 13 and 14, engaged in suitable engaging slots; in this connection it should be apparent that it would be also possible to provide other locating and locking means for properly locating and locking the bearing.
Thus, owing to the provision of the bearing 11, any friction forces between the outer body 3 and inner tubular body 8 of the female element will be practically eliminated, thereby allowing the connection, respectively disconnection, of the threaded parts 4 and 5 to be manually carried out, in a very easy manner and without using operating tools, since any friction forces, as operating in prior couplings, are herein overcome, owing to the provision of said bearing 11.
The front side or portion of the female body 3 of the quick coupling 1 receives herein a movable ring-nut element 15 having, on a front side thereof, an inner annular enlarged portion 16 there against abuts a spring 17 which also abuts against an outer shoulder 18, positionally fixed, of the tubular body 3.
At the front portion thereof, said ring nut 15 is held at an end position by a resilient ring element 19.
A plurality of radially extending holes 20 are circumferentially formed in the front portion of the tubular body 3, said holes receiving therein a corresponding plurality of ball elements 21 which, in a fully assembled condition of the male body 2 and female body 3, are engaged in a circumferential groove 22 of the male body 2, and operate as locking means as they are engaged in the circumferential groove 22 upon connecting the bodies 2 and 3.
Upon threading the body 2, by the threads 4 and 5, in the female body 3, said ball elements 21 will be radially outward displaced from the male body 2 and, accordingly, will cause the ring nut 15 to be backward driven (figure 2), thereby pressing the spring 17.
With the body 2 fully threaded in the tubular body 3 of the quick coupling, generally indicated by the reference number 1, the ball elements 21 will enter the groove or slot 22 of the male body 2 thereby causing the spring 17 to drive the ring nut 15 in the direction shown by the arrow (f) in figure 3, thereby the inner radially extending enlarged portion 16 will be arranged above the ball elements 21 to in turn lock the latter at their desired positions thereby providing a safe and properly locked connection between the body 2 and body 3 of the quick coupling 1.
As is desired to disconnect the body 2 from the body 3, the ring nut 15 must be displaced in the direction indicated by the arrow (g) in figure 3, to allow the ball elements 21, which are now in a free condition, to be radially displaced, to withdraw the body 2 from the tubular body 3, since the ball elements 21 will be able of freely radially outward moving, to allow the body 2 to be easily disengaged.
BACKGROUND OF THE INVENTION
The present invention relates to a quick coupling providing a safe connection of mechanical parts, an easy plug-in, respectively plug-out, of the quick coupling components, an efficient mutual connection and plug-in/plug-out, without using operating tools.
A well known requirement of the prior art, in particular in the electric or electronic apparatus refrigerating field, is that of continuously refrigerating electric or electronic components included in said apparatus.
This is usually performed by using a plurality of pipes designed for supplying a refrigerating fluid to the devices to be refrigerated, and return ducts for recovering the refrigerating fluid.
Said delivery or feeding, respectively return, pipes or ducts, are conventionally coupled to the devices to be refrigerated, by means of quick-coupling assemblies.
In a prior quick coupling assembly, the male element thereof has a male element thread which can be engaged with a female element thread formed on the female part of the coupling.
To prevent the two bodies of the quick coupling from accidentally detaching and sliding away, said prior quick couplings usually comprise a protective ring nut element which can be clamped under a clamping torque applied by a torque wrench.
A drawback of such a prior arrangement is that both the connecting and disengaging operations of the threaded parts require that a tool be used, such as a torque wrench.
Such a tool must also be used for overcoming the great friction occurring, in particular, between an inner tubular element and an outer tubular element of the quick coupling female part.
SUMMARY OF THE INVENTION
Thus, the object of the present invention is to provide a novel quick coupling allowing the threaded bodies thereof to be slidably connected, respectively disconnected, by simple manual operations, without requiring operating tools, while providing a safe connection of the quick coupling bodies.
According to the present invention, the above mentioned object is achieved by a quick coupling comprising a male element which can be threadably connected to a female body, said female body including an inner tubular body housing a bearing on which an outer tubular body bears.
Advantageously, the female body outer tubular body comprises, at a front side thereof, a plurality of circumferentially extending holes housing radially movable ball elements therein, said ball elements being adapted to be engaged in a circumferential slot of the male body, said ball elements being adapted to be radially locked by a circumferential enlarged portion formed on the inner side of a female body ring nut and adapted to be driven against a counter-biasing spring.
BRIEF DESCRIPTION OF THE DRAWINGS
The subject matter of the present invention will be disclosed and illustrated in a more detailed manner hereinafter with reference to an exemplary embodiment thereof, which is shown in the accompanying drawings, where:
Figure 1 is a longitudinal cross-sectional view showing the male element and female element of a quick coupling in a disassembled condition thereof;
Figure 2 is a further longitudinal cross-sectional view showing the components of the quick coupling in a partially threaded assembled condition; and Figure 3 shows the components of the quick coupling in a fully assembled condition.
DESCRIPTION OF THE PREFERRED
EMBODIMENT
As shown in figure 1, the quick coupling, generally indicated by the reference number 1, comprises a quick coupling male element 2 and a quick coupling female element 3 which can be mutually coupled to one another.
To provide a threaded type of connection, the male element 2 comprises, at a front portion thereof, an outer thread 4, to be coupled with an inner thread 5 formed inside the female body or element 3.
The operating fluid, such as a refrigerating fluid, is supplied, in a per se known manner, either through the inlet 6 of the male body 2 or through the inlet 7 of the female element 3.
The inlet 7 is formed in a tubular body 8 housing a longitudinally extending stem 9 encompassed by a spring 10, as known in the prior art.
The constructional elements 9 and 10, and related gaskets, advantageously 0-ring seals, will be not disclosed in further details therein, since they are well known in the prior art and are conventionally used in prior quick couplings.
Advantageously, the tubular body 8 houses therein a bearing 11, advantageously a thrust bearing, designed for resisting both against axial pushing forces and against radial efforts.
More specifically, the bearing 11 is housed in an annular chamber 12 formed in the outer tubular body 3 forming the female part of the quick coupling.
Also advantageously, the bearing 11 is held in its desired position by resilient ring elements 13 and 14, engaged in suitable engaging slots; in this connection it should be apparent that it would be also possible to provide other locating and locking means for properly locating and locking the bearing.
Thus, owing to the provision of the bearing 11, any friction forces between the outer body 3 and inner tubular body 8 of the female element will be practically eliminated, thereby allowing the connection, respectively disconnection, of the threaded parts 4 and 5 to be manually carried out, in a very easy manner and without using operating tools, since any friction forces, as operating in prior couplings, are herein overcome, owing to the provision of said bearing 11.
The front side or portion of the female body 3 of the quick coupling 1 receives herein a movable ring-nut element 15 having, on a front side thereof, an inner annular enlarged portion 16 there against abuts a spring 17 which also abuts against an outer shoulder 18, positionally fixed, of the tubular body 3.
At the front portion thereof, said ring nut 15 is held at an end position by a resilient ring element 19.
A plurality of radially extending holes 20 are circumferentially formed in the front portion of the tubular body 3, said holes receiving therein a corresponding plurality of ball elements 21 which, in a fully assembled condition of the male body 2 and female body 3, are engaged in a circumferential groove 22 of the male body 2, and operate as locking means as they are engaged in the circumferential groove 22 upon connecting the bodies 2 and 3.
Upon threading the body 2, by the threads 4 and 5, in the female body 3, said ball elements 21 will be radially outward displaced from the male body 2 and, accordingly, will cause the ring nut 15 to be backward driven (figure 2), thereby pressing the spring 17.
With the body 2 fully threaded in the tubular body 3 of the quick coupling, generally indicated by the reference number 1, the ball elements 21 will enter the groove or slot 22 of the male body 2 thereby causing the spring 17 to drive the ring nut 15 in the direction shown by the arrow (f) in figure 3, thereby the inner radially extending enlarged portion 16 will be arranged above the ball elements 21 to in turn lock the latter at their desired positions thereby providing a safe and properly locked connection between the body 2 and body 3 of the quick coupling 1.
As is desired to disconnect the body 2 from the body 3, the ring nut 15 must be displaced in the direction indicated by the arrow (g) in figure 3, to allow the ball elements 21, which are now in a free condition, to be radially displaced, to withdraw the body 2 from the tubular body 3, since the ball elements 21 will be able of freely radially outward moving, to allow the body 2 to be easily disengaged.
Claims (7)
1. A quick coupling, comprising a quick coupling male element which can be threadably connected to a quick coupling female body, characterized in that said female body (3) comprises an inner tubular body (8) housing a bearing (11) thereon said outer tubular body (3) bears.
2. A quick coupling, according to claim 1, characterized in that said outer tubular body (3) comprises, at a front portion thereof, a plurality of circumferentially arranged holes (20), said holes (20) housing therein a plurality of radially movable ball elements (21) which can be engaged in a circumferential slot (22) of the male body (2), and that said ball element (21) can be radially locked by a circumferential enlarged portion (16) formed on an inner side of a ring nut (15) which can be driven against a counterbiasing spring (17).
3. A quick coupling, according to claim 1, characterized in that said bearing (11) is housed in a chamber (12) of said tubular body (3) and is made as a thrust bearing.
4. A quick coupling, according to claim 3, characterized in that said bearing (11) is restrained at an operating position thereof in said chamber (12) by resilient ring elements (13, 14) engaged in circumferential slots.
5. A quick coupling, according to claim 1, characterized in that said female body (3) of said quick coupling (1) houses a displaceable ring nut (15) having an annular circumferential enlarged portion (16) there against a spring (17) bears, said spring abutting in turn against an outer shoulder (18) of the tubular body (3).
6. A quick coupling, according to claim 5, characterized in that said movable ring nut (15) is restrained at an end portion thereof by a resilient ring element (19).
7. A quick coupling, according to claim 1, characterized in that, with the body (2) being fully threaded in said tubular body (3) of said quick coupling (1), said ball elements (21) are engaged in the circumferential slot (22) of said body (2) and said spring (17) causes said ring nut (15) to be driven in a set direction (f), thereby locking said enlarged portion (16) on said ball elements (21).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000863A ITMI20060863A1 (en) | 2006-05-03 | 2006-05-03 | QUICK RELEASE |
| ITMI2006A-000863 | 2006-05-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2587313A1 true CA2587313A1 (en) | 2007-11-03 |
| CA2587313C CA2587313C (en) | 2015-02-24 |
Family
ID=38328412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2587313A Active CA2587313C (en) | 2006-05-03 | 2007-05-03 | Quick coupling |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7661724B2 (en) |
| EP (1) | EP1852644B1 (en) |
| JP (1) | JP2007298175A (en) |
| CN (1) | CN101067468A (en) |
| BR (1) | BRPI0702270B1 (en) |
| CA (1) | CA2587313C (en) |
| ES (1) | ES2374167T3 (en) |
| IT (1) | ITMI20060863A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028181A (en) * | 2021-03-26 | 2021-06-25 | 沪航科技集团有限公司 | Convenient quick butt joint's pipeline compensation connects |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITMI20051521A1 (en) * | 2005-08-03 | 2007-02-04 | Stucchi Spa | FEMALE ELEMENT FOR QUICK COUPLING FITTING FOR PIPING |
| KR100964254B1 (en) * | 2008-03-06 | 2010-06-16 | 우성전기공업 주식회사 | Electromagnet water supply valve |
| US7927036B2 (en) * | 2008-05-16 | 2011-04-19 | Reasoner Michael V | Quick connect with male and female terminals |
| DE102009019783A1 (en) * | 2008-07-30 | 2010-02-04 | Sms Siemag Aktiengesellschaft | Coupling with electrical contacts for an oil-air mixture |
| US9052047B2 (en) * | 2010-06-03 | 2015-06-09 | Keith Covert | Quick connect coupler for glass container molding machine |
| CN103201551B (en) * | 2010-10-15 | 2016-09-07 | 世伟洛克公司 | There is the promotion connecting tube joint of sleeve pipe |
| US20130312846A1 (en) * | 2012-05-25 | 2013-11-28 | André Sloth Eriksen | Fluid connector for a cooling system |
| DE102012216884A1 (en) | 2012-09-20 | 2014-03-20 | Robert Bosch Gmbh | Absauganschlusssystem |
| US9383046B2 (en) | 2013-03-14 | 2016-07-05 | Uniweld Products, Inc. | High pressure fitting |
| CN105050666B (en) * | 2013-09-25 | 2018-05-11 | 株式会社山凊 | Air respiratorresuscitator coupler |
| CN103791191B (en) * | 2014-01-17 | 2015-12-16 | 南通爱慕希机械有限公司 | A kind of locking rapid pipe joint |
| US20150298516A1 (en) * | 2014-02-18 | 2015-10-22 | Trek Bicycle Corp. | Pump head and valve stem assembly |
| US9534720B2 (en) | 2014-07-07 | 2017-01-03 | Michael V. Reasoner | Quick connect assembly including for use in pressurized fluid applications and incorporating auto shut-off feature |
| WO2016025877A2 (en) * | 2014-08-14 | 2016-02-18 | Flomax International, Inc. | Nozzle and keyed flush face receiver |
| TWI537508B (en) * | 2014-09-19 | 2016-06-11 | 溫芫鋐 | Quick release connector |
| FR3046209B1 (en) * | 2015-12-23 | 2018-02-16 | Staubli Faverges | RAPID CONNECTION FEMALE ELEMENT AND RAPID CONNECTION COMPRISING SUCH A FEMALE ELEMENT |
| US9909703B2 (en) | 2015-12-31 | 2018-03-06 | Dixon Quick Coupling | Fluid coupling and method |
| WO2017204239A1 (en) * | 2016-05-24 | 2017-11-30 | 日東工器株式会社 | Pipe joint comprising female joint member and male joint member |
| CN106122643B (en) * | 2016-07-26 | 2017-11-07 | 浙江工业大学 | A kind of dissection type vehicle fuel pipe snap joint |
| CN106234095A (en) * | 2016-08-03 | 2016-12-21 | 张春平 | Rain machine is made in water saving |
| JP7150310B2 (en) * | 2018-07-27 | 2022-10-11 | サーパス工業株式会社 | FLUID TRANSFER CONNECTOR AND CONTROL METHOD THEREOF |
| CN110181015B (en) * | 2019-06-24 | 2020-12-18 | 马鞍山钢铁股份有限公司 | Rotary pipeline device capable of being quickly disassembled and assembled |
| FR3101389B1 (en) * | 2019-09-30 | 2021-10-22 | Staubli Sa Ets | Fluidic connection |
| FR3128001B1 (en) * | 2021-10-13 | 2023-10-27 | Staubli Sa Ets | Quick coupling and connection assembly comprising such a quick coupling |
| CN114542815A (en) * | 2022-03-15 | 2022-05-27 | 重庆金若管道制造有限公司 | Wear-resistant antibacterial pipeline |
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2006
- 2006-05-03 IT IT000863A patent/ITMI20060863A1/en unknown
-
2007
- 2007-04-27 ES ES07008604T patent/ES2374167T3/en active Active
- 2007-04-27 EP EP07008604A patent/EP1852644B1/en active Active
- 2007-05-02 US US11/799,554 patent/US7661724B2/en active Active
- 2007-05-02 JP JP2007121382A patent/JP2007298175A/en active Pending
- 2007-05-03 BR BRPI0702270-0A patent/BRPI0702270B1/en not_active IP Right Cessation
- 2007-05-03 CA CA2587313A patent/CA2587313C/en active Active
- 2007-05-08 CN CN200710109721.6A patent/CN101067468A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028181A (en) * | 2021-03-26 | 2021-06-25 | 沪航科技集团有限公司 | Convenient quick butt joint's pipeline compensation connects |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1852644B1 (en) | 2011-09-28 |
| JP2007298175A (en) | 2007-11-15 |
| CA2587313C (en) | 2015-02-24 |
| EP1852644A3 (en) | 2010-01-06 |
| BRPI0702270B1 (en) | 2018-07-03 |
| EP1852644A2 (en) | 2007-11-07 |
| CN101067468A (en) | 2007-11-07 |
| US20070257485A1 (en) | 2007-11-08 |
| ES2374167T3 (en) | 2012-02-14 |
| US7661724B2 (en) | 2010-02-16 |
| ITMI20060863A1 (en) | 2007-11-04 |
| BRPI0702270A (en) | 2008-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |